<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>

    <style>
      p.uppercase {
          text-transform: uppercase;
          text-indent: 1em;
      }
      p.lowercase {
        text-transform: lowercase;
      }
      p.capitalize {
        text-transform: capitalize;
        text-indent: 1em;
      }
    </style>
  </head>
  <body>
    <p class="uppercase">This is some text.</p>
    <p class="lowercase">This is some text.</p>
    <p class="capitalize">This is some text.</p>
  </body>
</html>
